Fasto S860 – Food Grade, Industrial RTV Silicone Sealant

Fasto S860 is a one-part, neutral cure, non-corrosive RTV silicone sealant developed for durable sealing, bonding, and glazing applications across industrial, electrical, automotive, and construction sectors. Its neutral cure chemistry ensures safe application on metals and sensitive substrates while offering excellent resistance to environmental exposure.

Packaging:

Drum : 270kg

Bucket : 25kg

Cartridge : 280ml

Key Features

Neutral Cure & Non-Corrosive
Does not corrode metals or damage sensitive surfaces.
Single-Component, Ready to Use
No mixing required, easy application with standard tools.
All-Weather Performance
Resistant to UV radiation, moisture, ozone, pollutants, and temperature extremes.
Good Mechanical Strength & Flexibility
Handles joint movement, vibration, and thermal expansion.
Wide Substrate Compatibility
Bonds effectively to metals, glass, plastics, rubber, ceramics, and construction materials.
Suitable for Indoor & Outdoor Use
Reliable performance in exposed and semi-exposed conditions.

Benefits

Ensures long-lasting sealing without corrosion
Reduces maintenance and joint failure risks
Ideal for multi-industry applications, reducing product inventory
Maintains joint integrity under weather and temperature variations
Clean finish suitable for both functional and aesthetic applications

Primary Application	Sub-Applications	Functional Purpose	Key Performance Advantage
HVAC & Air Duct Sealing	Air-conditioning ducts, ventilation joints	Airtight sealing and vibration absorption	Neutral cure, flexible, weather resistant
Expansion Joint Sealing	Building expansion joints, movement joints	Accommodates structural movement	High elongation, durable elasticity
ACP Sheet & Façade Sealing	ACP panels, façade joints, cladding interfaces	Weatherproof sealing of exterior panels	UV & moisture resistant, non-corrosive
Electrical Enclosure Sealing	Junction boxes, insulators, control enclosures	Protection against dust and moisture	Electrically safe, non-corrosive
Outdoor Utility & Fixture Sealing	Street lights, signage boards, outdoor fixtures	Long-term environmental protection	All-weather performance
Automotive Body & Assembly Sealing	Bus body joints, vehicle assemblies	Flexible joint sealing under movement	Maintains bond strength under vibration
Solar Panel & Assembly Sealing	Panel frames, mounting joints	Moisture and environmental protection	Weather resistant, stable adhesion
Multi-Substrate Bonding & Sealing	Steel, aluminium, composites, ceramics, glass, plastics, rubber, concrete	Reliable bonding on mixed substrates	Broad substrate compatibility

Surface Preparation

Clean surfaces thoroughly to remove dust, oil, grease, rust, scale, and contaminants.
Use a suitable Fasto cleaner for best adhesion results.

Application Method

Apply Fasto S860 using a manual or pneumatic dispensing gun.
Extrude a continuous, uniform bead onto the prepared surface.
Assemble or tool joints immediately to avoid premature skin formation.
Remove excess sealant using a suitable cleaner.

Construction Joint Sealing

Ensure joint surfaces are sound, clean, and dry.
For large joints, use a backer rod or bond breaker tape.
Use masking tape for clean edges and remove it after tooling and before skin formation.

Curing Information

Skin formation: 15–25 minutes
Tack-free time: 25–35 minutes
Full cure: 24 hours
(Cure time varies with humidity, temperature, and joint depth)

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